Finding the Fourth Proportional to 1,856.16, 2,562.17 and 1,266.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,856.16 : 2,562.17 = 1,266.28 : x
2. Step 2: Convert to fraction form
   1,856.16/2,562.17 = 1,266.28/x
3. Step 3: Cross multiply
   1,856.16x = 2,562.17 × 1,266.28
4. Step 4: Simplify right side
   1,856.16x = 3,244,427.79
5. Step 5: Solve for x
   x = 3,244,427.79/1,856.16
6. Step 6: Final answer
   x = 1,747.92